Fourdrinier machine



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FOURDRINIER MACHINE 4 Sheets-Sheet 3 Filed Feb. s, 192s Gemzyg @Maur-cu? July 29, 1930. J. w. VEDDER n AL'` FOURDRINIER MACHINE Filed Feb. 8. 192 4 Sheets-Sheet 4 3l. Y sv AWM' ` for facilitating the replacement ofthe longV Fourdrinier wire.` Ot-henfeatures of the in-s t one end of the machine, showing themechaf Patented July 29, 1930:

'UNITEDSTATES PAT-ENT l orrilicaN :OHN WARREN vEImER, EREEERTCR W. LODDING, ANDV GEORGE EAMOUREUX, "E WORCESTER, MASSACHUSETTS, ASsIeNoRS To RICE, BARTON a EALES, INC., OE WORCESTER, MASSACHUSETTS, A, CORPORATION OE MASSACHUSETTS p EOURDRINIE'R MACHINE Appiicanon ned February s, leas. Serin No. 86,744.

l This invention relates to a-paper making Y machine of the` Fourdrinier type. `The lprincipal objects of the'ienvention are toprovide an improved arrangement by which most of the parts that are in the way can be' removed sideways as a unit to permitfthe Fourdrinier wire to be inserted as a wholey to provide various improvements in the several parts ofthe machine by which .this is accomplished, particularly a pit underthe machinelfor receiving a pivoted track, ex tending across the Wire and the pit, adapted to support rolls carrying the removable frame and capable of being swung back out of the way atione side of the pit so as to allow the' wire to be inserted; tofprovidean improvement in the mounting of the lower couch roll so that it will not have to be removed but can be simply shifted back and forthwhen thev wire is to be inserted; to provide a wire stretching device which also canbe moved down entirely out of the way until the wire is in place ready to be stretched; to provide improvements in the arrangement for shak` ing or vibrating the `breast roll readily de` tachable to permit of its removal; to provide an arrangementjwhereby the frame can be lifted at one point to release it-from its sup-- ports, and l*in general to `provide a series of improvements co-operating with each other vention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which i Fig. 1 is a side view ofoneend of a paper` making machine constructedin accordance with this invention in condition for use;-

Fig. l? is a side view on reducedscale showing thevwire in running position but with-` out the decklemechanism; o

' Fig. 2 is a similar side view showing the4 machine with the `frame removed and the Y wire inplace ready for reassembly; I- i o Fig. 3 is a "plan of the wire stretching device for tightening up thewire p Fig; 4t is an end view,ipartlyjinsection, of

nism for vibrating the breast rollandtable rolls; v t t Y Y Fig. 5 is a plan of one of the pivotedrrails for supporting the rear Wheels of the carriage which haveto be rolled out to be changed; and t lV Fig. 6 is a sectionalview on the line 6-7`6 of Fig. 5, showing the carriage in place.

1We have chosen a well known type of mawhen the wire is Vchine for illustration to show the application ofv these improvements thereto. The invention involves several improvements in the parts thereof co-o-perating with each other `the head box `11 which `may be of the usual construction. Adjacent to this head boX on the frame is the usual breast rollf12j ust above which is the apron board 13 which is adapted a toswing upwardly and is supported by piv`` oted brackets 14 arranged to swing outwardly. p e y The deckle strap 15 is supported by deckle wheels 16 mounted in brackets detachably supported by the frame 10 in the usual man-` ner. This. invention does not 'relate to Vany features of the deckle.`mechanism and the usual y constructions, are shown co-operating with it. These include two slices 18 to 19 with adjusting means for controlling the pas` sage of the solution and the thickness ofthe deposit 'on the "Fourdrinier wire 20.

Y The Fourdrinier wire, of course, passes from the breast roll; 12 to the couch roll 21.

It will 'be understood'by anyone skilled in therart' that this wire is endless and that accordingto modern practice it is intended to be put on this machineras a wholeand not fed in )and threaded throughjthe ma-V chinery. Y Forthis purpose the foundationor floor on which theniachine frame ,10 rests is provided with transverse single tracks 22 on-the front side of the Vmachine and these tracks extend clear up toa pit 23 below the floorlevel over 'which theframe'i() is lo-v cated. Adjacent to the pitaresbrackets 24 at rthe ends ofi-'the tracks 22, each provided I with a vertical pivot pin on which a track V section 26 is carried. i This is piece-of strue- 1 and with the previously known constructions. The machine 1s Illustratedas having a unitural section, usually, with Va track formed on its upper surface and adapted to swing from the dotted line position shown in Fig. 5 to the full line' position in which it eX- tends clear across' the pit. On the opposite end of the swingingrail 26 it is shaped to lit against a short track section 27 fastened.

in the loor opposite the track 22.v It has a removable pin 28 for connection with the rail 26.

Itis clear therefore that this rail section can be swung across the pit so as to support the real wheel 29 of' aV pair when the frame l0 on which these wheels are located is moved out in the direction of the arrow in Fig. 6. Then when this trame is entirely removed so that the rear one of the wheels .29 rests on the track 22, the track 'section 26 is disconnected at 28 and swung into longitudinal position, shown in dottedlines in Fig. 5. In this case we have shown two sets of these wheels 29 on downwardly and outwardly eX- tending brackets 30, butl of coursesome other number can be employed.

Thev frame l0 supported by the wheels car-- ries the table 31 by means of flat springs 37V which allow the table to vibrate, being supported from the bottom and having a space at each side. Between two adjacent springs 37 the .spaces between thechannelirons oi the frame l0 are iilled by cast iron blocksl 39Et to increase the rigidity of the frame. The table 3l is pivoted on a vertical pivot 32 at one end, in thel form shown, and carries the table rolls 33 thereon all in one section. This table is pivotally connected at 34 with the bearings 47 of the breast roll l2 and there fore when the breast roll is vibrated transversely of the machine the table with its rolls 33 will be vibrated with it at that vend about the pivot 32 at theother This table has below it a series of plates or chutes 35 which drain the liquor passing down between the rolls into a series of troughs 36 carried bythe trame l0, directing all this liquor into the several troughs n 36. The liquor from these troughsis drawn oit" and usedover again as usual and the plates4 35 are so placed that at all points there is some-, vthing to catch the water. The usualsu'c-4 tion boxes 38 are also mounted on the frame At the entrance .end of the'machine is 'a power shaft 40 whic'hybymeans of an adjustable crank 4l, swingsja bell crank 42 abouta center 43sandvibratesarflexible rod 44 longitudinallv. f Thisrod` has a head 45*l which is perforated lto receive pinV 46 that is mounted on a bearing 47 'ofthe breast roll l2. This bearing 47 7 as well asthe oppof site bearing, is supported by a series of thin vertical flexible plates 49 held iixedY at the bottom between al pair ot channel ironsO on the frame l0. This permits vibration of the roll l2 from the shaft '40in a direction flon-v chine.

overhanging end of the frame 50 at each side to lock this pin withrcspect to the standard 51. l

Furthermore, at this end of the machine there is a. screw 54 at each side with a worm and hand wheel arrangement 55 for raising the 'frame 10 Vat this end and adjusting it.

to the proper height. This is usedv to lower the frame on its wheels;

Located'at a distance from this adjustment is another adjusting arrangement for tightening the Fourdrinier wire. 'Thiscomprises a transverse stretch roll 56 and two vertical screws 57 operated through bevel gearsby a hand wheel 58 for the purpose of moving the stretch roll 56 up and down.- The screws 57, throughthe use of the removable hand wheel 58,` raise and lower the supporting bearings `for the roll l56. The Ysupporting bearings move up and down in stationary frames '59,V being carried by ,quid-es 60 therein.

The use of this machine is making the paper is substantially the same as any paper making machine of thisv type. The Fourdrinier wire 2O passes as usual over the breast roll 'l2 and the c ouch roll 2l, the latter being mounted on a rame6l which moves back and l'orth on a track by a rack and' pinion arwire rolls which are mounted on the under, side ot the traine l0 and move with itr Be' low it is' supportedby the wire rroll 65 near the couch roll and by thetightening roll 56 Awhich has been described and which is moved up and downto affect the tension of the Fourdrinier wire. Normally the screws 54 are turned sothat theframe l0 rests on them and on a pivot rod 69 at the other end of the ma- This rod carries supportsY 68 having sockets for projections 67 atthe end ofthe frame l0'.y

When it is desiredto replace the wire, the` old wire is cut and removed in the usual way, then the first thing that done after removing the old wire is to lower the roll 56 down to thelowerinost,position below-the bottom of the pit indicated in Fig. 2. Now the `couch rfoll 2lv is moved upto the position ,in Fig. This gives the necessa slackY for putting on new wire. The pin 46 yis removed to releasey the breast roll. The hand wheels 55 andy 58 lee are removed. Of course it is understood that y at this time the rails 26 are located longitudinally as shown in dotted lines in liig.

The deckle strap mechanism is ymoved upwar'dly, as is well understood, by any kind of lifting device.

Now the fastening device 53 is released, the pin 52 taken out, the rails are swung across to the position shown in full lines in Fig. and the wheels 55 restored. The screws 54 are adjusted to lower the table to rest on the wheels 29. The lowering` of the screws 54 on account of the support of the frame l() `on the wheels 29, raises the eXtreme opposite end of the table so that the projection 67 comes out of the socket 68 which releases the frame l() from this pivotal support. Now the parts are in the position shown in Fig. 2, all ready to permit of the moving of the frame 10 with all its supported parts out sideways to the front so that the rear wheels 29 rest on the track 22 instead of the track 27.

Now the rails 26 are swung back to longitudinal position. The new wire is lirst inserted over the couch roll in the usual way and is placed in the machine in the position 2O.v The poles 66 are inserted to hold the .wire in position. Then the rails are swung across the pit and the frame l0 is moved back into its original position. There is no obsta cle to this motion at this time. i

This constitutes a simple way of applying the Fourdrinier wire with comparatively few partsof the machine to be handled sep- I- arately and consequently a comparatively small amount of preparation for this operation. Furthermore, the parts of the machine which are moved out together can be so moved without disturbing` any of the adjustments except the two adjustments mentioned and can be put back again in just the same position without any undue ,amount Oflabor. rlhis arrangement does not interfere with the vibratin'fr of the breast rolland the adjacent `end of the table, but on the other hand, this is arranged for. in a very simple way. The

several features of the invention abovedescribed allco-operate toA secure the desired results, and constitute a part of the meansV c bywhich they areV accomplished.

These arrangements, designed as they are for the tacilitation of the application` of the Fourdrinier wire, add little, if any,'to the expense ofthe machine andV reduce the diliiculty .ot making this change. Y

ViL'iilthougirh we have illustrated and described only a single form of the invention vand shown it vas applied to only one type of paper making machine, we are aware of the fact that :i modifications .can be .made therein by anyv person skilledin the art without departing from. the scope of the invention aseXpressed :in the claim. l

y Therefore we do not wish tobey limited in these `respects but whatwe doV claim is:-

1. In a Fourdrinier machine, the combination of a frame, wheels atthe floor level for supporting' said frame, said `frame being movable sideways on said wheels to permit the ourdrinier wire to be exchanged, a couch roll supported beyond said frame at the end, and means for moving saidicouch roll hori-` zontally toward and from the frame to give the Fourdrinierwire vslack when the frame is in position within the Fourdrinier wire.,

2.' ln a Fourdrinier machine, the combination with a frame for supporting the table rolls and suction boxes, wheels thereon by which it is movable sideways, tracks for said j wheels, a pivot at-one end of the frame, ardetachable'eoiinection between the frame and said pivot, and an adjusting` device at the other. end" of the frame, said wheels being so v located that when the frame is lowered by the adjusting device so that the wheels rest on the tracks, the other end of the frame will be lifted thereby to release said detachable conncction.` j

3. In a Fourdrinier machine, the combination of afframe having guide rolls for supporting and guiding a Fourdrinier wire thereon, a horizontal pivot at one end of said frame, a. detachable connection between said pivot. at'one end of said frame, a detachableV connection between said pivotV and the fra-me at that end, whereby by raising that end ofthe frame it will become detached from the connection, wheelsl for supporting said frame at a distance from each end, and means for vertically adjusting the opposite end of the frame to a position in which the wheels will clear the lioor to a position in which the connection at thepivot end'will be detached,

whereby when the frameis lowered so as to Vrest on the wheels it will become detached from the pivot and can be rolled out of position on Vthe wheels.

Y Y 5.111 aFourdrinier machine, the'combina-l tion of a frame-having guide rolls for supporting and guiding a Fourdrinier wirethereon, a horizontal pivotat one end of said iframe, a detachable connection between said pivotand the frame at that end, whereby by raising that end of lthe frame it will become porting said' frame "at a distancepfromV each end, and means whereby when the frame is Y lowered so as to rest on the wheels it will bev detached from the connection, wheels for supcome .detached from the pivot and can he rolled ont 01" position on the Wheels, With means for -Jixedly holding the frame at the end. e 6.v In a Fonrdriniel machine, the Combina- Vtion with a. iixed frame comprisngtwo struetuial sections spaced apart, a flat 'spring iiXed to the bottom thereof, extending up between them and above them, a vibratable frame carried in part by said spring, and lsolid pieces inserted between said structural sections and illing the space, at points on ethel side of thesprng.

In testimony whereof We have hereunto afixed our signatures. A Y

J. TARREN VEDDER. GEORGE [LAMOUREUQ n yFREDERICK W.LODDING. 

